Signstek 3PCS 3D Printer Bed Surface for 3D Printer Platform, 220mm x 220mm x 0.5mm (Black)

The 3 self adhesive (3M 9080A) black bed surface sheets came well packaged and were of good quality.I fitted one to a glass bed on an Anycubic i3 Mega. A little oversized for this 3D printer but I justleft the slight overhang without trimming. I can confirm that I have tested on Colorfabb NGen, Matchbox ABS(with heated bed) and PLA and each part has stuck very well. Just remember to use Isopropanol toclean the build sheet before each use The ABS printing was a real triumph and I had no warping issues even with complex parts.The downside with nearly all PEI build sheet materials is that they start to deform and loose their ability to hold prints down after a while.These Signstek build sheets started to degrade at around 20 medium sized prints on ABS. The deformity is when the adhesive startsto fail (from the constant heating, cooling and part removal) and you get raised areas which then cause the bed not to be flat.Not much good for ABS after that.I do think these sheets are good value for money. I was so pleased to see complex ABS parts stick after a 4 hourprint that even if the build sheet fails after 20 prints I have still saved the money (and time) I would have wasted on warped parts.Recommended for occasional ABS and regular PLA/NGEN printing.

This is the second set of 3 I've bought, having worn one out and given one away and just started on the last of the second set.I'd struggled to print on glass without warping, if the print lifting and spend too much time messing with glue, hairspray and type.I stuck one to the problem glass so I could flip the glass and still use it if needed and the print print stuck, no warping, no lifting, just a perfect print.The downside was it stuck so well I had to cool it and slip a long thin blade under the print to release it, they dont look like much but they have magical bonding powers.I helped someone build a geeetech printer and throw one on their glass, boom magic well stuck prints.They take hot filament so well it covers up a badly leveled bed and is much more forgiving.if you're sick of problems with your bed try one.I did get a one print so close to the bed it ripped the sheet when I removed it, this was after 6 months of service and my fault so I cleaned up the glass and replaced it with another.I printed TPU, PETG and PLA, all worked great, TPU comes off it very cleanly, the bed only set to 40, it does work it if off, but I like a little heat and dont get the extruder too close it makes it harder to remove the print and can damage the sheet, it melts!

I bought these as unlike the Build-Tak ones, they actually fit the printer bed of 220mm square. I've modified my printer to use a stainless steel sheet removable surface which is held on to the heat bed with magnets. The bed surface by Signstek was fitted easily enough. The adhesive seemed secure and I managed to fit it without any air bubbles. First few prints with PLA went well but on or around the 10th print, I noticed a piece of the bed surface stuck to one of the removed prints. It was only around a millimetre in size so I just made sure the next print avoided the area of damage. Next print was in PETG and after printing saw a section in a different place break off the surface with the print, this time about 6mm across. This has rendered the surface unusable and I've had to remove and scrap it. Also, as other reviewers have mentioned, the white decal on the surface comes off onto the print. Why they feel the urge to emblazon such unnecessary tripe on their product is beyond me. Anyone mature enough to run a 3D printer, knows the bed could be hot. If anyone is that stupid not to realise, they probably can't read anyway. I printed several models in Black PLA and it ruined the surface finish on them. I've had a build-Tak surface on an identical printer (Anet A6) and it's only just now starting to lose it's adhesive qualities. It might be more expensive than the Signstek but I wouldn't buy this Signstek product again.

The "issue" I would have with this is that it a little too adhesive. I normally just get replacement bed sheet from the printer manufacturer but due to stock issues and my need to get some things printed I opted to give this brand a try. The sheet is a little thicker then my manufacturer provides but I adjusted my z offset to account for that although I had to back it off a smidge more than the thickness difference and lower my bed temp a bit because my first print bonded with the bed (Killed the print as I had to melt the print to remove it from the bed).But I tweaked the offset a little more and lowered the bed temp and now I'm getting successfull prints with it.

Found it to be a really good surface to print on, only difficulties I have had is either removing this surface from the glass and also one sheet is not large enough to cover my print area, I have put two sheets next to each other however it lips up at the edges meaning I now have raised centre part in my platform

I had a lot of problems with adhesion not working (Febtop Optimus Delta) but banged one of these on and had massive success first time! The part stuck to the surface so well, I could not actually get it off. Decided to peel the whole sheet of the heated bed to try to get it off that way. Net result was much of the adhesive came off onto the heated bed and was a real problem to get off. Acetone seemed to be the only way to soften it. The part came off mostly intact, but I still have not managed to get the brim off the mat. Perhaps I'll try without the brim next time.